1. The effects of dust-haze on mortality are modified by seasons and individual characteristics in Guangzhou, China.
- Author
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Liu T, Zhang YH, Xu YJ, Lin HL, Xu XJ, Luo Y, Xiao J, Zeng WL, Zhang WF, Chu C, Keogh K, Rutherford S, Qian Z, Du YD, Hu M, and Ma WJ
- Subjects
- China epidemiology, Environmental Exposure analysis, Female, Humans, Linear Models, Male, Seasons, Air Pollutants analysis, Air Pollution statistics & numerical data, Cardiovascular Diseases mortality, Cerebrovascular Disorders mortality, Dust analysis, Environmental Exposure statistics & numerical data, Respiratory Tract Diseases mortality
- Abstract
This study aimed to investigate the effects of dust-haze on mortality and to estimate the seasonal and individual-specific modification effects in Guangzhou, China. Mortality, air pollution and meteorological data were collected for 2006-2011. A dust-haze day was defined as daily visibility <10 km with relative humidity <90%. This definition was further divided into light (8-10 km), medium (5-8 km) and heavy dust-haze (<5 km). A distributed lag linear model (DLM) was employed. Light, medium and heavy dust-haze days were associated with increased mortality of 3.4%, 6.8% and 10.4% respectively, at a lag of 0-6 days. This effect was more pronounced during the cold season, for cardiovascular mortality (CVD), respiratory mortality (RESP), in males and people ≥60years. These effects became insignificant after adjustment for PM10. We concluded that dust-haze significantly increased mortality risk in Guangzhou, China, and this effect appears to be dominated by particulate mass and modified by season and individual-specific factors., (Copyright © 2014 Elsevier Ltd. All rights reserved.)
- Published
- 2014
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